fix: continue to debug and fix strt amd waveform weirdness

sfm/server.py

@@ -1028,7 +1028,7 @@ def db_event_waveform(event_id: str) -> dict:
     waveform viewer can consume either source without modification:
       - total_samples, pretrig_samples, rectime_seconds, samples_decoded
       - sample_rate
-      - peak_values  (tran, vert, long, micl_psi, peak_vector_sum)
+      - peak_values  (tran_in_s, vert_in_s, long_in_s, micl_psi, peak_vector_sum)
       - channels     ({"Tran": [...], "Vert": [...], "Long": [...], "Mic": [...]})
 
     Returns 404 if the event doesn't exist, 422 if the event exists but has no

sfm/waveform_viewer.html

@@ -507,11 +507,13 @@
     const micPeakPsi = data.peak_values?.micl_psi ?? null;
     const DBL_REF_PSI = 2.9e-9; // 20 µPa in psi
 
-    // 0C record peak values (device-computed, authoritative) per channel
+    // 0C record peak values (device-computed, authoritative) per channel.
+    // Keys: live-device endpoint uses tran_in_s/vert_in_s/long_in_s;
+    // DB blobs created before 2026-04-14 used tran/vert/long — fall back for compat.
     const peakValues0C = {
-      Tran: data.peak_values?.tran_in_s ?? null,
-      Vert: data.peak_values?.vert_in_s ?? null,
-      Long: data.peak_values?.long_in_s ?? null,
+      Tran: data.peak_values?.tran_in_s ?? data.peak_values?.tran ?? null,
+      Vert: data.peak_values?.vert_in_s ?? data.peak_values?.vert ?? null,
+      Long: data.peak_values?.long_in_s ?? data.peak_values?.long ?? null,
     };
 
     for (const [ch, color] of Object.entries(CHANNEL_COLORS)) {